Solve the problem.The surface area of a cylinder whose radius is r inches and height is 9 inches is given by 
square inches. Express the surface area in factored form.
A. 2?r(r + 9)
B. 2(?r2 + 18?r)
C. 2?r(r + 18)
D. 2?(r2 + 18?)
Answer: C
You might also like to view...
Provide an appropriate response.There are currently 70 million cars in a certain country, decreasing by 3.1% annually. How many years will it take for this country to have 48 million cars? Round to the nearest year.
A. 12 years B. 7 years C. 100 years D. 22 years
Solve the problem.Two tracking stations are on the equator 120 miles apart. A weather balloon is located on a bearing of 
from the western station and on a bearing of N19°W from the eastern station. How far is the balloon from the western station? Round to the nearest mile.
A. 138 miles B. 99 miles C. 129 miles D. 90 miles
Add. Write the answer in lowest terms.
A. 46
B. 45
C. 45
D. 44
Simplify the expression. Write the answer using positive exponents.
A. x11
B. 
C. 
D. x12